
Yunomaru
High, dry and up before everyone else
湯の丸Where the base is higher than most summits
Yunomaru starts where most Japanese ski resorts finish. The base sits at 1,730 m on a breezy plateau above the town of Tomi, and the top of the lifts reaches 1,965 m. That height is the whole story. It is cold enough to make snow in November, it stays dry when lower hills get rain and it keeps its season running into April. Japan's athletes come up here in summer for altitude training. In winter, the national pastime switches to junior racers drilling gates and families getting their first turns in before Christmas.
The terrain is short and sweet: nine runs off six chairs, with 235 m of vertical. A fast covered chair runs up the main face, there are a couple of short steeper pitches up to 28 degrees and a lot of wide, mellow cruising. It is not a place to come for adventure, but it is a reliable, easy-going hill with excellent grooming and big views across to Mt. Asama on clear days.
The catch is natural snowfall, which is light, and the wind on the exposed upper slopes, which can bite. You're here for cold corduroy and early-season mileage, not powder. The good news is that it's easy to reach from the Shinkansen and cheap to ski.
This review covers the terrain, where to stay (including the hotel at the bottom of the lifts) and how Yunomaru fits with its neighbour over the pass.
Resort Stats
Estimated cumulative fresh snowfall at major on-mountain ski areas; actual totals vary substantially by resort, elevation, measurement location, and season.
- Vertical235m (1965m → 1730m)
- Snowfall~4m
- Terrain 40% 40% 20%
- Tree Riding
- Lift Pass¥5,400
- Lifts1 high-speed covered chair, 1 triple, 4 pair
- Crowds
- Out of BoundsNot allowed
- Night Skiing
- Family Friendly
- Trails9
- Skiable Area~50ha
- Vibebreezy, sunny, training-camp
Trail Map

Accommodation
View MapYunomaru Kogen Hotel sits right at the base of the lifts, so you can ski straight from the door. It is a big, old-school mountain hotel with Japanese-style family rooms, a handful of Western rooms, simple seasonal dinners and an open-air onsen bath with views over the plateau. Day skiers can use the bath too, and on a cold afternoon it is the best thing on the mountain.
There are a few other places on the hill. Lodge Kamon and Cityos Jizo are simple lodges near the lower slopes with home-style meals, and Pension Hoshi no Yado is a small, friendly option nearby. Narahara Onsen Asamaen, about 10 minutes down the road, is a quiet hot-spring inn with good food and a more traditional feel.
For more choice, stay in Ueda. The castle town has plenty of business hotels near the Shinkansen station, good restaurants and easy road access to Yunomaru, Kazawa Snow Area and Sugadaira Kogen. Karuizawa, about 50 minutes away, has more upmarket options if you're mixing ski days with shopping.
Powder & Terrain
The No.6 high-speed covered chair is the main artery, a 1,040 m lift that runs up the main face and saves you from the wind on cold mornings. The steepest runs sit off the top: short, firm pitches up to 28 degrees that are fun to rip first thing while the grooming is fresh. The rest of the hill is wide intermediate and beginner terrain, with the triple and the pairs serving gentle lower slopes that are ideal for learners and kids. Natural snow is light and the snowpack is mostly machine-made early in the season, so expect firm, fast conditions and the odd icy patch on windy days. After a rare bigger storm, the edges of the upper runs hold soft snow for a few laps. There is no tree skiing and off-piste is closed, so treat this as a carving hill and bring sharp edges.
Getting There
By car: take the Joshinetsu Expressway to Tobu-Yunomaru interchange, then about 20 minutes (14 km) of mountain road up to the resort. Winter tyres are essential, and chains are handy on storm days. Parking is free, with space for about 1,500 cars.
By train: take the Hokuriku Shinkansen to Ueda, about 90 minutes from Tokyo, or the Shinano Railway to Tanaka Station. There is no regular bus up the mountain, but the hotel can arrange pick-ups for overnight guests. Otherwise, a hire car from Ueda is the easiest option.
Who's it for?
- First-timersGood
- Non-skiersLimited
- BudgetGood
- LogisticsOkay
Yunomaru suits beginners, families and intermediates who want a cheap, easy day near Ueda or Karuizawa, and early-season skiers who want to get their legs back in November or December. It is also popular with school and race groups, so weekdays early in the season can feel like a training camp. Advanced skiers will get a few hours of fun on the top pitches. Powder hunters and tree skiers should spend their big days elsewhere.
Food & Après
On the mountain, there are several rest houses at the bottom of the lifts serving ramen, curry rice, katsudon and soba. Nothing fancy, but warm and cheap. The standout is Atelier de Fromage, a well-known local cheese maker with a shop and cafe down the hill. Its pizza and cheese fondue are the best après food for miles. The roadside station Raiden Kurumi no Sato (kurumi means walnut) in Tomi sells walnut sweets and local produce, and the soba shop Maruyama is a good lunch stop when it's open.
Après means the hotel onsen or one of the hot springs on the way down. For dinner and drinks, head to Ueda, where the old castle town has izakaya, ramen and plenty of soba made from local buckwheat.
Japow Travel Tips
- Lift hours: weekdays 8:30 to 16:30, weekends and holidays 8:00 to 16:30. The season usually runs from late November to early April.
- Cheap days: look out for discount days, including days when primary school kids ski free.
- Wind: the top of the plateau is exposed. Bring a neck warmer and use the covered chair on cold days.
- Snow: low natural snowfall, but good snowmaking and grooming. Don't come for powder.
- Language: English is limited, but the layout is easy and the staff are friendly.
Nearby resorts worth pairing
Kazawa Snow Area is just over the pass in Gunma, about 10 minutes away, and has more vertical and one steep face. Sugadaira Kogen, about 50 minutes north, is a much bigger resort with more variety. Palcall Tsumagoi and Karuizawa are both within an hour if you want to build a road trip.
Verdict: cold, cheap and up early
Yunomaru is a simple, high-altitude hill that does the basics well. The snow is firm, the slopes are short and the wind can be fierce, but it opens early, it's cheap and the hotel at the base makes it one of the easiest ski-in, ski-out stays in this part of Nagano. Come in December for early laps, warm up in the onsen and finish with cheese fondue. It won't change your life, but it'll get your legs ready for the places that might.